diff --git a/site_extended_description.md b/site_extended_description.md
index e9183cd..8986c52 100644
--- a/site_extended_description.md
+++ b/site_extended_description.md
@@ -1,4 +1,4 @@
-# 이용 규칙
+## 이용 규칙
 
 [English version available](site_extended_description_EN.md)